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Are the diagonals of a rhombus equal?

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Junior | Next Rank: 30 Posts
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by seyna » Sat Feb 15, 2014 11:28 am
Came across this property in one of the questions. I assumed the diagonals of a rhombus to be equal.Can anyone tell me?
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by Brent@GMATPrepNow » Sat Feb 15, 2014 11:56 am
seyna wrote:Came across this property in one of the questions. I assumed the diagonals of a rhombus to be equal.Can anyone tell me?
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The diagonals of a rhombus NEED NOT have equal length (see diagram). That said, the diagonals CAN have equal length, but only in the case of a square (which is a special kind of rhombus).

A few other facts about the rhombus:
- The diagonals bisect each other at 90 degree angles
- Opposite angles are equal
- All 4 side have equal length
- adjacent angles add to 180 degrees

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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